copyright: delete unnecesary info

`debian/copyright' is no longer required to list the Debian
maintainers involved in the creation of the package.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
examples: reorganize debian/ for examples

Make a cleaner debian/ dir by splitting the examples stuff into an
'debian/examples/' dir.

Suggested-by: Rodolfo García Peñas <kix@debian.org>
Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>